glx: Add missing glproto dependency for gallium-xlib glx

Cc: mesa-stable@lists.freedesktop.org
Cc: Bruce Cherniak <bruce.cherniak@intel.com>
Signed-of-by: Chuck Atkins <chuck.atkins@kitware.com>
Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2 files changed